Mine started the first week and now has 4K miles. Does it several times and hour on a long road trip. Appears to be some type of flap opening behind the dashboard. When glove box is open you can feel the air coming from there too. Dash vents never stop blowing cold. I sent vin and miles to jeep cares. Unfortunately I don’t have time to drop it off for several days for the dealer to tell me they xmcant duplicate the problem. Maybe in a couple of weeks Only way to duplicate is to drive it until it happens. Maybe an hour maybe less.